add workflows

.github/workflows/stale.yml

@@ -0,0 +1,26 @@
+# This workflow warns and then closes issues and PRs that have had no activity for a specified amount of time.
+#
+# You can adjust the behavior by modifying this file.
+# For more information, see:
+# https://github.com/actions/stale
+name: Mark stale issues and pull requests
+
+on:
+ schedule:
+ - cron: '38 17 * * *'
+
+jobs:
+ stale:
+
+ runs-on: ubuntu-latest
+ permissions:
+ issues: write
+
+ steps:
+ - uses: actions/stale@v3
+ with:
+ repo-token: ${{ secrets.GITHUB_TOKEN }}
+ stale-issue-message: 'This issue is not active for a long time and it will be closed in 5 days. Feel free to re-open it if you have further concerns.'
+ stale-issue-label: 'inactive'
+ days-before-stale: 60
+ days-before-close: 5